April 25, 2012: It looks like there may be some . . . TENSION between Jay Z and friend/labelmate/tour mate Kanye West.

MediaTakeOut.com told you WEEKS AGO that Jay is NOT TOO ENTHUSIASTIC about Kanye's new love of Kim Kardashian.

We ALSO told you that Jay Z had FORBIDDEN Kim Kardashian from coming ON TOUR with the pair.

Well now we're told that Jay Z and Beyonce are NOT going to be in the same ROOM with Kanye and Kim Kardashian.

According to TWO VERY RELIABLE MediaTakeOut.com snitches, that Jay Z and Beyonce REFUSED TO ENTER Carmelo Anthony's special "Audemars" dinner on Monday night - until AFTER Kim and Kanye left.

One insider told us that Jay Z and Bey WAITED OUTSIDE, in their van - until Kim and Kanye left. Tells the insider, "Beyonce doesn't want to be in the same [photo] shot with [Kim Kardashian]."

Another insider told MediaTakeOut.com that Kim and Kanye ONLY STAYED for 5 minutes. And after they left, Beyonce and Jay Z arrived and enjoyed themselves until the EARLY MORNING hours. The insider explained, "Swizz Beat was DJing, and Jay and Bey had a great time."

Hopefully Yeezy doesn't do anything STUPID, and f*ck up the THRONES TOUR!!!